Geodesic
A comparative analysis of the observed effects of 2d tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional au-qd systems in an external electric field
Nanosistemy: fizika, himiâ, matematika, Tome 9 (2018) no. 6, pp. 724-734

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The effects of 2D tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional Au-quantum dot (QD) arrays in thin dielectric films in an external electric field have been studied theoretically and experimentally by Conductive Atomic Force Microscopy (CAFM). In the case of quasi-one-dimensional Au-QD structures (with the QD size $\sim$ 5 nm), in a dielectric film, a single break under positive bias polarity, corresponding to the effect of 2D tunneling bifurcation, previously predicted theoretically by our team [1], has been detected in experimental I-V curves of the CAFM probe-to-sample contact. A convincing qualitative agreement between the obtained experimental I-V curves and the theoretical field dependence for the 2D-dissipative tunneling probability in the model 2D-oscillator potential has been obtained for the case of parallel tunneling in the weak-dissipation limit at a finite temperature in an external electric field. In the case of quasi-two-dimensional structures with Au QD (with the QD sizes of 2 to 5 nm), possessing metamaterial properties, a pair of kinks corresponding to the double effect of 2D-tunneling bifurcations has been detected on the experimental I-V curves. A qualitative agreement between the experimental I-V curves and the theoretical field dependence for the 2D-dissipative tunneling probability has been obtained for a situation with an effectively “negative” permittivity of the heat bath.
Keywords: quantum tunneling with dissipation, quantum dots, two-dimensional bifurcations. 
@article{NANO_2018_9_6_a3,
     author = {M. B. Semenov and V. D. Krevchik and O. N. Gorshkov and D. O. Filatov and Y. Dakhnovsky and A.V. Nikolaev and A. P. Shkurinov and V. Yu. Timoshenko and P. V. Krevchik and A. K. Malik and Y. H. Wang and T. R. Li and Y. Zhu and S. Zhuang and R. V. Zaitsev and I. S. Antonov and I. M. Semenov and A. K. Aringazin and A. V. Shorokhov and Y. H. Wang},
     title = {A comparative analysis of the observed effects of 2d tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional au-qd systems in an external electric field},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {724--734},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2018_9_6_a3/}
}
TY  - JOUR
AU  - M. B. Semenov
AU  - V. D. Krevchik
AU  - O. N. Gorshkov
AU  - D. O. Filatov
AU  - Y. Dakhnovsky
AU  - A.V. Nikolaev
AU  - A. P. Shkurinov
AU  - V. Yu. Timoshenko
AU  - P. V. Krevchik
AU  - A. K. Malik
AU  - Y. H. Wang
AU  - T. R. Li
AU  - Y. Zhu
AU  - S. Zhuang
AU  - R. V. Zaitsev
AU  - I. S. Antonov
AU  - I. M. Semenov
AU  - A. K. Aringazin
AU  - A. V. Shorokhov
AU  - Y. H. Wang
TI  - A comparative analysis of the observed effects of 2d tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional au-qd systems in an external electric field
JO  - Nanosistemy: fizika, himiâ, matematika
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%A O. N. Gorshkov
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%A A.V. Nikolaev
%A A. P. Shkurinov
%A V. Yu. Timoshenko
%A P. V. Krevchik
%A A. K. Malik
%A Y. H. Wang
%A T. R. Li
%A Y. Zhu
%A S. Zhuang
%A R. V. Zaitsev
%A I. S. Antonov
%A I. M. Semenov
%A A. K. Aringazin
%A A. V. Shorokhov
%A Y. H. Wang
%T A comparative analysis of the observed effects of 2d tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional au-qd systems in an external electric field
%J Nanosistemy: fizika, himiâ, matematika
%D 2018
%P 724-734
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M. B. Semenov; V. D. Krevchik; O. N. Gorshkov; D. O. Filatov; Y. Dakhnovsky; A.V. Nikolaev; A. P. Shkurinov; V. Yu. Timoshenko; P. V. Krevchik; A. K. Malik; Y. H. Wang; T. R. Li; Y. Zhu; S. Zhuang; R. V. Zaitsev; I. S. Antonov; I. M. Semenov; A. K. Aringazin; A. V. Shorokhov; Y. H. Wang. A comparative analysis of the observed effects of 2d tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional au-qd systems in an external electric field. Nanosistemy: fizika, himiâ, matematika, Tome 9 (2018) no. 6, pp. 724-734. http://geodesic.mathdoc.fr/item/NANO_2018_9_6_a3/